/*
 * Copyright (c) 2012 Johan Fylling
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy 
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights 
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 
 * copies of the Software, and to permit persons to whom the Software is 
 * furnished to do so, subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in 
 * all copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 
 * THE SOFTWARE.
 */

part of tools;


class InputMethod {
  final List<bool> stateSet;
  final List<int>  stateUnset = new List<int>();
  
  InputMethod (int size) : this.stateSet = new List<bool>(size) {
    for (int i = 0; i < this.stateSet.length; i++) {
      this.stateSet[i] = false;
    }
  }
  
  void update () {
    for (int i = 0; i < this.stateUnset.length; i++) {
      this.stateSet[this.stateUnset[i]] = false;
    }
    this.stateUnset.clear();
  }
  
  bool isStateSet (int index) {
    if (index < 0 || index >= this.stateSet.length) {
      return false;
    }
    return this.stateSet[index];
  }
}
